Official source Data mirrored from Centers for Medicare & Medicaid Services Open Payments · General Payments · CMS publication 2026-06-30 View official record

Reflects CMS Open Payments as of 2026-07-26T04:22:22Z. CMS updates this data on an annual cycle, and corrections or successful disputes made at CMS may not yet appear here. The official CMS record is authoritative for the current state. View the official CMS record ↗

Covered recipient · General Payments record

VIVIAN H CHOU

Allopathic & Osteopathic Physicians Allergy & Immunology

NPI
1457573420
CMS profile
65724
Location
EVANSTON, IL

A name match is not confirmation of identity. CMS publishes records for different people under similar names; the NPI, specialty, and location shown on this page are the CMS-published fields that distinguish them.

General Payments · PY2019–2025

  • CMS publication 2026-06-30

Latest program year · PY2025

$1,461.82

67 records · 0 disputed

“Financial relationships do not necessarily indicate an improper relationship; the data is open to interpretation.”

— Centers for Medicare & Medicaid Services, Open Payments

A reported payment reflects a financial relationship a company disclosed. It does not indicate wrongdoing or a conflict of interest, and it says nothing about the quality of a provider's care.

These records are submitted to CMS and attested to by the reporting companies. CMS publishes them as reported; this site mirrors them without independent verification.

A payment attributed to a provider may have been made to a third party — a hospital, practice, or research institution — rather than paid to the provider personally.

How these totals are calculated
  • This total is the sum of the individual General Payments record amounts CMS published for the labeled program year(s); each record amount is used unmodified. The total itself is computed by this site. Nothing is estimated, weighted, or combined across categories.
  • General Payments only. Research and Ownership/Investment are separate datasets and are never summed with these figures; amounts are kept separate per program year.
  • Featured-page threshold (a presentation gate, not a judgment): (records>=3 OR total>=100) AND records>=2 AND NPI identity (all years).
  • Methodology & Data — sourcing, labeling, and limitations.

By nature of payment

PY2025 · sorted by reported total

Nature of paymentAmountRecords
Food and Beverage $1,427.09 64
Consulting Fee $27.96 2
Education $6.77 1

By paying entity

PY2025 · sorted by reported total

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $1,192.22 78
PY2020 $248.16 15
PY2021 $1,074.16 56
PY2022 $2,143.18 101
PY2023 $1,996.23 91
PY2024 $2,241.57 93
PY2025 $1,461.82 67

Payment records · PY2025 (67)

Ordering applied by this site (date, newest first, then paying entity) · record values are shown as CMS published them

Program year 2025 201920202021202220232024 Record-level detail is published for PY2025; earlier years are summarised in “By program year”.
Paying entity Amount Date Nature of payment Dispute status Published Record ID Source
AstraZeneca Pharmaceuticals LP $29.62 12/23/2025 Food and Beverage No dispute reported 06/30/2026 1206226178 CMS
GENZYME CORPORATION $20.30 12/04/2025 Food and Beverage No dispute reported 06/30/2026 1233446435 CMS
ARS Pharmaceuticals Operations, Inc. $23.62 12/03/2025 Food and Beverage No dispute reported 06/30/2026 1245870931 CMS
Galderma Laboratories, L.P. $19.94 11/15/2025 Food and Beverage No dispute reported 06/30/2026 1234628255 CMS
AstraZeneca Pharmaceuticals LP $18.96 11/14/2025 Food and Beverage No dispute reported 06/30/2026 1206406124 CMS
AstraZeneca Pharmaceuticals LP $29.66 11/07/2025 Food and Beverage No dispute reported 06/30/2026 1206351143 CMS
Regeneron Healthcare Solutions, Inc. $36.05 11/07/2025 Food and Beverage No dispute reported 06/30/2026 1212890418 CMS
Novartis Pharmaceuticals Corporation $20.30 10/24/2025 Food and Beverage No dispute reported 06/30/2026 1200099920 CMS
BioCryst US Sales Co., LLC $23.34 10/15/2025 Food and Beverage No dispute reported 06/30/2026 1222002905 CMS
ARS Pharmaceuticals Operations, Inc. $27.12 10/08/2025 Food and Beverage No dispute reported 06/30/2026 1245870928 CMS
AstraZeneca Pharmaceuticals LP $29.62 10/03/2025 Food and Beverage No dispute reported 06/30/2026 1206760553 CMS
GENZYME CORPORATION $24.94 10/02/2025 Food and Beverage No dispute reported 06/30/2026 1233446407 CMS
AstraZeneca Pharmaceuticals LP $16.76 10/01/2025 Food and Beverage No dispute reported 06/30/2026 1206771768 CMS
Genentech USA, Inc. $13.91 09/24/2025 Food and Beverage No dispute reported 06/30/2026 1211605795 CMS
AstraZeneca Pharmaceuticals LP $29.83 09/20/2025 Food and Beverage No dispute reported 06/30/2026 1206173386 CMS
AstraZeneca Pharmaceuticals LP $24.37 09/19/2025 Food and Beverage No dispute reported 06/30/2026 1206437280 CMS
GlaxoSmithKline, LLC. $16.34 09/18/2025 Food and Beverage No dispute reported 06/30/2026 1190992524 CMS
Amgen Inc. $15.69 09/10/2025 Food and Beverage No dispute reported 06/30/2026 1228428426 CMS
Galderma Laboratories, L.P. $19.10 09/06/2025 Food and Beverage No dispute reported 06/30/2026 1234628253 CMS
GENZYME CORPORATION $20.12 09/04/2025 Food and Beverage No dispute reported 06/30/2026 1233446395 CMS
AstraZeneca Pharmaceuticals LP $21.97 08/29/2025 Food and Beverage No dispute reported 06/30/2026 1206935424 CMS
Regeneron Healthcare Solutions, Inc. $14.34 08/27/2025 Food and Beverage No dispute reported 06/30/2026 1212890416 CMS
AstraZeneca Pharmaceuticals LP $22.82 08/22/2025 Food and Beverage No dispute reported 06/30/2026 1207249062 CMS
GENZYME CORPORATION $23.68 08/07/2025 Food and Beverage No dispute reported 06/30/2026 1233446383 CMS
ARS Pharmaceuticals Operations, Inc. $29.52 07/30/2025 Food and Beverage No dispute reported 06/30/2026 1245870924 CMS
BioCryst US Sales Co., LLC $15.93 07/26/2025 Food and Beverage No dispute reported 06/30/2026 1222020225 CMS
GENZYME CORPORATION $24.11 07/24/2025 Food and Beverage No dispute reported 06/30/2026 1233446379 CMS
AstraZeneca Pharmaceuticals LP $29.84 07/12/2025 Food and Beverage No dispute reported 06/30/2026 1206155984 CMS
AstraZeneca Pharmaceuticals LP $23.14 07/11/2025 Food and Beverage No dispute reported 06/30/2026 1207227751 CMS
Regeneron Healthcare Solutions, Inc. $26.75 07/04/2025 Food and Beverage No dispute reported 06/30/2026 1212890414 CMS
Genentech USA, Inc. $19.62 06/25/2025 Food and Beverage No dispute reported 06/30/2026 1211605787 CMS
ADMA BioManufacturing LLC $16.49 06/18/2025 Consulting Fee No dispute reported 06/30/2026 1211422324 CMS
GlaxoSmithKline, LLC. $15.67 06/13/2025 Food and Beverage No dispute reported 06/30/2026 1190353838 CMS
GENZYME CORPORATION $16.43 06/05/2025 Food and Beverage No dispute reported 06/30/2026 1233446363 CMS
Kedrion Biopharma, Inc. $15.51 06/05/2025 Food and Beverage No dispute reported 06/30/2026 1206768384 CMS
Novartis Pharmaceuticals Corporation $19.09 05/23/2025 Food and Beverage No dispute reported 06/30/2026 1200099918 CMS
GlaxoSmithKline, LLC. $26.48 05/22/2025 Food and Beverage No dispute reported 06/30/2026 1190539882 CMS
Regeneron Healthcare Solutions, Inc. $26.21 05/22/2025 Food and Beverage No dispute reported 06/30/2026 1212890412 CMS
AstraZeneca Pharmaceuticals LP $22.19 05/17/2025 Food and Beverage No dispute reported 06/30/2026 1206706219 CMS
ADMA BioManufacturing LLC $11.47 05/15/2025 Consulting Fee No dispute reported 06/30/2026 1211422322 CMS
ARS Pharmaceuticals Operations, Inc. $25.87 05/14/2025 Food and Beverage No dispute reported 06/30/2026 1245870920 CMS
GENZYME CORPORATION $30.71 05/01/2025 Food and Beverage No dispute reported 06/30/2026 1233446345 CMS
AstraZeneca Pharmaceuticals LP $20.50 04/25/2025 Food and Beverage No dispute reported 06/30/2026 1206824277 CMS
AstraZeneca Pharmaceuticals LP $19.46 04/23/2025 Food and Beverage No dispute reported 06/30/2026 1206842919 CMS
AstraZeneca Pharmaceuticals LP $15.31 04/18/2025 Food and Beverage No dispute reported 06/30/2026 1206416971 CMS
HOSPIRA, INC. $23.34 04/11/2025 Food and Beverage No dispute reported 06/30/2026 1229067206 CMS
Regeneron Healthcare Solutions, Inc. $27.18 04/11/2025 Food and Beverage No dispute reported 06/30/2026 1212890410 CMS
Amgen Inc. $14.06 04/09/2025 Food and Beverage No dispute reported 06/30/2026 1227141074 CMS
ARS Pharmaceuticals Operations, Inc. $28.63 04/04/2025 Food and Beverage No dispute reported 06/30/2026 1245870916 CMS
Cycle Pharmaceuticals Inc $18.31 04/02/2025 Food and Beverage No dispute reported 06/30/2026 1248901759 CMS
BioCryst US Sales Co., LLC $22.18 03/27/2025 Food and Beverage No dispute reported 06/30/2026 1222016769 CMS
GENZYME CORPORATION $20.80 03/27/2025 Food and Beverage No dispute reported 06/30/2026 1233446333 CMS
AstraZeneca Pharmaceuticals LP $26.49 03/21/2025 Food and Beverage No dispute reported 06/30/2026 1207151040 CMS
Regeneron Healthcare Solutions, Inc. $26.78 03/20/2025 Food and Beverage No dispute reported 06/30/2026 1212890408 CMS
Regeneron Healthcare Solutions, Inc. $6.77 03/18/2025 Education No dispute reported 06/30/2026 1212890406 CMS
AstraZeneca Pharmaceuticals LP $16.26 03/07/2025 Food and Beverage No dispute reported 06/30/2026 1206452076 CMS
CSL Behring $24.78 03/07/2025 Food and Beverage No dispute reported 06/30/2026 1232381664 CMS
Genentech USA, Inc. $14.28 03/05/2025 Food and Beverage No dispute reported 06/30/2026 1211605791 CMS
AstraZeneca Pharmaceuticals LP $21.45 02/13/2025 Food and Beverage No dispute reported 06/30/2026 1206287002 CMS
Regeneron Healthcare Solutions, Inc. $23.97 02/07/2025 Food and Beverage No dispute reported 06/30/2026 1212890404 CMS
ARS Pharmaceuticals Operations, Inc. $1.00 02/05/2025 Food and Beverage No dispute reported 06/30/2026 1245870909 CMS
ARS Pharmaceuticals Operations, Inc. $20.48 02/05/2025 Food and Beverage No dispute reported 06/30/2026 1245870913 CMS
AstraZeneca Pharmaceuticals LP $13.67 01/31/2025 Food and Beverage No dispute reported 06/30/2026 1206859526 CMS
Regeneron Healthcare Solutions, Inc. $12.21 01/16/2025 Food and Beverage No dispute reported 06/30/2026 1212890402 CMS
AstraZeneca Pharmaceuticals LP $59.57 01/10/2025 Food and Beverage No dispute reported 06/30/2026 1206260566 CMS
AstraZeneca Pharmaceuticals LP $21.44 01/10/2025 Food and Beverage No dispute reported 06/30/2026 1207026164 CMS
GENZYME CORPORATION $25.47 01/08/2025 Food and Beverage No dispute reported 06/30/2026 1233446319 CMS

Source & provenance

Dataset
CMS Open Payments — General Payments
Publisher of source data
Centers for Medicare & Medicaid Services
CMS publication date
2026-06-30
Program years on this page
2019, 2020, 2021, 2022, 2023, 2024, 2025
Source files
Dataset page · Bulk file · PY2019 , PY2020 , PY2021 , PY2022 , PY2023 , PY2024 , PY2025
Generated from
OP_DTL_GNRL_PGYR2025_P06302026_06032026.csv

One page per canonical provider; split Profile_IDs are merged via Associated_Covered_Recipient_Profile_ID_1/_2 from the Covered Recipient Profile Supplement.

Corrections to the substance of a record route to CMS through its review-and-dispute process; errors in how this site mirrors or displays a record route to us. Both paths are described in Methodology & Data.

Cite this record.

Plain
VIVIAN H CHOU, NPI 1457573420. IndustryPayments, data edition 2026-07-26T04:22:22Z. https://industrypayments.org/provider/npi-1457573420.
APA 7
IndustryPayments. (2026). VIVIAN H CHOU, NPI 1457573420 (Data edition 2026-07-26T04:22:22Z) [Data set]. https://industrypayments.org/provider/npi-1457573420
Bluebook
VIVIAN H CHOU, NPI 1457573420, IndustryPayments (data edition 2026-07-26T04:22:22Z), https://industrypayments.org/provider/npi-1457573420.

Source: Centers for Medicare & Medicaid Services, Open Payments.